53533867 has 4 divisors (see below), whose sum is σ = 56682936. Its totient is φ = 50384800.

The previous prime is 53533859. The next prime is 53533873. The reversal of 53533867 is 76833535.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53533867 - 2³ = 53533859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53533817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1574509 + ... + 1574542.

It is an arithmetic number, because the mean of its divisors is an integer number (14170734).

Almost surely, 2^53533867 is an apocalyptic number.

53533867 is a deficient number, since it is larger than the sum of its proper divisors (3149069).

53533867 is a wasteful number, since it uses less digits than its factorization.

53533867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3149068.

The product of its digits is 226800, while the sum is 40.

The square root of 53533867 is about 7316.6841533580. The cubic root of 53533867 is about 376.8855950074.

The spelling of 53533867 in words is "fifty-three million, five hundred thirty-three thousand, eight hundred sixty-seven".